I would open it.
When you hold your hands in a polythene bag, moisture from your skin is trapped inside. As your hands release heat, this moisture evaporates and condenses on the inside surface of the cooler bag, creating steam or water droplets.
A sealed bag of vegetables expands in the microwave due to the heating of moisture and gases inside the bag. As the vegetables heat up, the water content turns into steam, increasing pressure within the bag. If the pressure becomes too high and the bag is not designed to vent, it can cause the bag to expand significantly or even burst. This is why it's important to use microwave-safe bags or to puncture the bag to allow steam to escape.
the house was clean and organised
When a bag of vegetables is heated, the water content within the vegetables turns into steam, causing an increase in pressure inside the bag. Additionally, the heat can cause gases produced from the vegetables to expand. If the bag is sealed and unable to vent this steam and gas, it will inflate, leading to the observable expansion. This effect is similar to how a sealed container can bulge when heated.
They can cause steam scalding if you place your face near the bag when opening it.
the bag inside the bag would expand D:
The temperature of the gas changes
Yes, it is. As steam is given of, if you get a plastic bag and place it over the top, you catch water vapour and you will see water droplets inside it.
There is a bag- you are referring to one bag, not the many peaches. If you said there are peaches in the bag, that would be different.
Let it ferment. Could be some good stuff when you boil it off.
The bag would be sucked in, you would never see it again.
No, even if you make sure it has an opening for venting steam. http://www.youtube.com/watch?v=QEkIdWRwhQg